Secure

Sign a PDF, and see it proved

Draw, type or photograph your signature.

On this device

Make your signature

The document is opened in this tab and never sent anywhere. Your signature is made here too, and no copy of it is kept when you leave.

    Opened on this device · never transmitted

    What this tool does, exactly

    Draw your signature, type it, or photograph the one you sign on paper — then place it and, if the document needs it, put it on every page at once. The signature is drawn into the page itself rather than left as an annotation, and the finished file is re-opened and checked before you are offered anything.

    This is a picture of your signature, not a cryptographic one
    It is what most documents ask for and what a scanned-and-emailed signature has always been. It is not a cryptographic signature and this site does not claim otherwise: that needs an identity authority to vouch for who you are and a trail recording when you signed, and both are things a server does. This page has no server, which is also why nothing you sign here leaves your device.
    Three ways to make one
    Draw it with a finger, a stylus or the mouse. Type your name and have it set in your device's handwriting font. Or photograph the signature you already sign on paper and lift it off the sheet.
    A photograph is a piece of paper until the paper is removed
    A camera returns a rectangle of a sheet with a mark on it, and pasting that onto a contract covers the line it was meant to sit on with a pale grey box. The paper is measured — locally, so the shadow across one side of the sheet is measured too — and turned into transparency, and the margin around the ink is cropped away so the signature is what you place rather than the photo of it.
    Every page, when the document needs it
    A contract that is initialled on each page is the reason this exists. The signature is placed at the same spot on every page in one gesture, and each one is counted and then found again in the finished file.
    The date and your initials
    Both are placed the same way as the signature and are drawn in the same pass. The date is the one your own device thinks it is; nothing here asks a server what day it is, and nothing timestamps the document in a way anybody else could verify.
    What it proves
    Before you are offered anything, the finished file is re-opened from its own bytes: every signature you placed must be found in it, every page must still be there, and nothing may be left as an annotation a reader could strip. The document's own text must still be selectable. If any of that fails there is no download.

    About this tool

    How do I sign a PDF?

    Open the document here, make your signature — draw it, type it, or photograph the one you sign on paper — then drag on the page where it belongs. Tick every page if the document is initialled throughout. Press sign, and the tool re-opens its own finished file to check the signature is really on every page it should be before it offers you anything.

    Is this a legally binding electronic signature?

    This site will not tell you what is binding where you live, and any free tool that does is guessing. What this one gives you is honest and specific: a picture of your signature drawn into the page, the same thing as printing, signing and scanning — which is what most documents ask for and what a great many contracts are signed with every day. What it is not is a cryptographic signature. That needs an identity authority to vouch for who you are and an audit trail recording when you signed, and both are server functions. This page has no server, which is exactly why nothing you sign here is uploaded.

    Is my document uploaded?

    No. This is a static page with no endpoint to upload to: the document is opened, signed, saved and checked in this browser tab. Your signature never leaves it either. Open your browser's network panel while you sign, or disconnect from the internet once the page has loaded and watch it keep working — which matters more here than anywhere else on this site, because the documents people sign are the ones they would least like to hand to a stranger.

    Can I use the signature I already sign on paper?

    Yes, and it is usually the better-looking one. Sign a blank sheet, photograph it, and choose the photograph: the paper is measured and turned into transparency, the margin around the ink is cropped away, and what lands on your contract is the signature rather than a grey rectangle with your name in it. It works on a shaded photo taken by hand, because the paper is measured across the picture rather than assumed to be white.

    How do I put my signature on every page?

    Place it once and tick every page. It is put at the same spot on each one, which is what a document that is initialled throughout needs. The tool counts what it placed and then finds each of them again in the finished file, so a contract cannot come back one page short of signed.

    Can somebody remove my signature afterwards?

    Not as easily as from most signed PDFs, which is the reason for the default here. Tools that leave a signature as an annotation leave an object anybody can select and delete, and some software strips annotations without being asked. This one draws the signature into the page's own content, so it is part of the document. Anybody determined enough can still alter a PDF — that is what a cryptographic signature exists to detect, and this tool does not offer one.

    Can I sign a password-protected PDF?

    Not directly. Remove the password with the unlock tool on this site — you will need the password the file opens with — and sign the copy it gives you. If the signed file has to be protected again, the protection tool will encrypt it with a new password.

    What if the document has a signature field in it?

    A signature field is a form control, and filling one with a real digital signature is the cryptographic job this tool does not do. Place your signature over the field instead: it is drawn into the page, so it prints and travels exactly where you put it. The form tool on this site fills the document's other fields.

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